Potassium, calcium, and magnesium in the tropics and subtropics
The potential for increased food production in the world is undoubtedly greater than even the most optimistic surveys predict. Proper use of adequate amounts of potassium, calcium, and magnesium in fertilizers, soil amendments, crop residues and other byproducts, and minerals will be necessary if crop production potentials are to be realized. Use of these three plant nutrients with others will be an increasingly important part of the exploitation of natural resources as new lands of the tropics and subtropics are brought into production. Most of the increase in food production will come from more intensive use of lands already in production, however, and the soils of these lands will need larger amounts of all plant nutrients if high yields are to be reached and maintained. This report is intended to point out some of the complexities of the soil and fertilizer problems involving potassium, calcium, and magnesium. It is hoped that the information it contains will be helpful in the research, education, and development that will be required to point the way to increased food and crop production on soils of the tropics and subtropics throughout the world.
- Research Organization:
- International Fertilizer Development Center, Muscle Shoals, AL (USA)
- OSTI ID:
- 6706463
- Report Number(s):
- IFDC-T-23; ON: DE83900050
- Country of Publication:
- United States
- Language:
- English
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